netdev - Re: [PATCH net] bridge: Handle IFLA_ADDRESS correctly when creating bridge device

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Date:	Thu, 24 Apr 2014 11:38:27 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Toshiaki Makita <makita.toshiaki@....ntt.co.jp>
Cc:	"David S. Miller" <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	bridge <bridge@...ts.linux-foundation.org>,
	"C. R. Oldham" <cr@...tstack.com>, Tom Gundersen <teg@...m.no>
Subject: Re: [PATCH net] bridge: Handle IFLA_ADDRESS correctly when creating
 bridge device

On Thu, 24 Apr 2014 21:16:27 +0900
Toshiaki Makita <makita.toshiaki@....ntt.co.jp> wrote:

> +static int br_dev_newlink(struct net *src_net, struct net_device *dev,
> +			  struct nlattr *tb[], struct nlattr *data[])
> +{
> +	int err;
> +	struct net_bridge *br = netdev_priv(dev);
> +
> +	if (tb[IFLA_ADDRESS]) {
> +		spin_lock_bh(&br->lock);
> +		br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
> +		spin_unlock_bh(&br->lock);
> +	}
> +
> +	err = register_netdevice(dev);
> +	if (err)
> +		return err;
> +
> +	return 0;
> +}

Looks good.

Why not just do simpler tail call??
    return register_netdevice(dev);
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